How stoned is too stoned to drive? That’s a question that the University of California, San Diego’s Center for Medicinal Cannabis Research is studying in lab tests where participants are instructed to, yes, inhale and drive — but on simulators. Participants ages 21 to 55 commit about a day-and-a-half to the testing. Researchers obtain the [...]

How stoned is too stoned to drive? That’s a question that the University of California, San Diego’s Center for Medicinal Cannabis Research is studying in lab tests where participants are instructed to, yes, inhale and drive — but on simulators. Participants ages 21 to 55 commit about a day-and-a-half to the testing. Researchers obtain the [...]